A file named is the second part of a multi-volume RAR archive . Because this is a "split" archive, you cannot open it alone; you must have all parts (e.g., part1, part2, etc.) to successfully extract the data inside. How to Extract Multi-Part RAR Files
Do you have of the archive (like part1.rar) in the same folder? How to Extract Part .RAR Files (Full Guide) 334.part2.rar
To use this file, follow these steps commonly recommended by security and software experts like those at AVG and Avira : A file named is the second part of
: If you are missing any part of the sequence, the extraction will fail with a "missing volume" or "CRC error." you cannot open it alone